Protector for harvesters.



J. J. GRAHAM. PROTECTOR FOR HARVESTERB.

APPLIOATIOK mum nnq.1s, 1909.

968,935. Patented Aug; 30,1910.

WITH/88581}? MENTOR ap/4M4 (5? aadu. JOHN 1 @fifi/IHM o a. TM Br nrromvers ency toward clogging'of the harvester by mm .15. ensign, as snnrnnnn nonm'nnxorn.

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Spec fication of Letters Patent. I?at'ehtxul Aug, I910.

Application filed lllecember 15, 1909. Serial No. 533,139.

To all who'me't mag roman;

Be it. known that 1, JOHN J. GRAHAM, a

citizenof the United States, and a, residentv of parts, hereinafter described and claimed. The object of this invention is to provide a protector of the character specified, which will prevent straws, gum, etc., from collecting, onand cloggin'gthe rollers, especially -the'lower roller of the elevator apron.

' Referrin to the drawin stormin apart hereof :F1gure 1 isa si e view 0? a harvester provided with the improvement.

I Fig. 2 is a face view of the improvement detached. Fig.- 3 is. a section on the linet3-3 of Fig. 2, and Fig. 4 is a section on theline 1-4 of the same figure. T

As is well known, there is a great tendstraw, etc., materially increasing .the draft, slowing the operation, and finally stopping the machine. a

The principal, point where the clogging /takes place is at the lower roller of the lower I elevating canvas, at the inner-end of the sickle bar and just behind the same. This roller 1 is geared to the driving mechanism of the machine by'a chain 2, passing over a sprocket wheel 3 on the roller, and connecting. it with another sprocket wheel 4, which is driven indirectly from the main wheel 5.

A canvas apron 6 passes over the roller and the cut straws are elevated between one run of this apron and the adjacent run of another in the usual manner. The said roller is directly behind the sickle bar 7-,.and the usual dividing board 8 is secured to the frame 9 of the-machine at thenen d of the sickle bar.

The protector10, shown more particularly in Figs. 2, 3 and 4, is secured to the'rear end ofthe inner dividing board, as shown in Fig. 1. The said protector is formed from improvement in pro- I tectors for harvesters, and COIlSlStS 1n certam novel constructions, and COIIlblIlfitlQIlS an irregular'right-ang-led triangle in shape. 7

The front edge 11 of the rotector is substantially straight, and" the s eet is provided with a series of openings 12 parallel with the edge 11, and the sheet is secured to the inner dividing board by means of'bolts or nuts 13, which pass through the openings 12 and the dividing board. a V v 7 I The protector is arranged (Fig. 1) in'a slightly inclined position with the base 14 at an angle to the axis of the roller, and

I a sheet of suitable rigid and strong material,

with the front edge of the sheet inElining forwardly toward its ',top, and with the corner formed by the junction of the. base 14"".

and the hypothenuse 15 extending back. of the front edge ofthe apron. The sheet is also curved transversely, as indicated at 16 in Fig. iq-and the convex side of-the sheet is arrangedtoward the apron, the cut straws being thu'sdirectedoiitwardly away'from' the edge of the' apron. It will beevident that the straws will be effectually prevented from'being caught between the apron and the roller, thus preventing clogging of the same.

The'operationfwillbe evident from the description, as will also the simplicity and inexpensiveness of the protector, andits eflicienoy. 4 It may bea'pplied to any harvester, with no change except the boring of a few holes.

I claim 1. ,In a harvester, the combination with the inner dividing board, the" elevator apron 4 and the supporting roller therefor, of a protector comprising a substantially triangular sheet of rigid material secured to the inner dividing board and arranged with one of its sides substantially parallel with the axis of the roller which supports the under elevator apron said sheet having [one of its angles extend the point where it passes over the lower supportinglroller, the said sheet. being curved on. its orizontal axis and havingthe con- .vex side of the sheet towardthe apron.

2. In a harvester, the combination with the inner dividingboard, the under elevator ing over the .under elevator-apronat loo apron and the supporting roller therefor, of v'ator apron at the point Where it passes ,a protector comprising a substantially triover the lower supporting roller.

angular sheet of rigid material secured to v i the inner dividing board and arranged with JOHN GRAHAM one of its sides substantially parallel with l Witnesses:

the axis of the roller, said sheet having one S. G. SEVERTSON, of its angles extendmg over the under ele- OSCAR T. O. SEDAHL. 

